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miniPA100 100w HF 1.8--54mhz amplifier kit

Discussion in 'Amateur Radio Amplifiers' started by BG6GLL, Jun 14, 2017.

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  1. BG6GLL

    BG6GLL QRZ Member

    Electrical parameters:
    1.Operating frequency band 1.8 - 54 MHz
    2. power supply voltage: 12V-16V
    3. current: 12A
    4.max input power:5W
    5.max output power: 100W(13.8V/80W ; 16V/100W)
    6. air cooling: forced fan cooling
    Warning: the output is forbidden to open circuit, short circuit, the prohibition of Bobbi 2 or more
    7.Size: 50 x 100 mm

    Attached Files:

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    • b.jpg
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  2. KU3X

    KU3X Ham Member QRZ Page

    Remember, you MUST also use band pass filters with the above amp.
    Since they are not shown in the above picture, I have to assume they do not come with each unit.
    Without them your spurious radiation will not even come close to complying with FCC specs.
    KM4BDH and AD0MI like this.
  3. BG6GLL

    BG6GLL QRZ Member

    minipa100 100w hf amplifier

    Attached Files:

    • 100.jpg
      File size:
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  4. BG6GLL

    BG6GLL QRZ Member

    Reserved LPF interface
  5. AF6LJ

    AF6LJ Ham Member QRZ Page

    Is this linear
    Or Class C?
  6. BG6GLL

    BG6GLL QRZ Member

    Class AB linear amplifiers
    AF6LJ likes this.
  7. PD7MAA

    PD7MAA Ham Member QRZ Page

    input swr.jpg Did you check the input swr with this upgraded 70 Watt PA ?
    Your 70 Watt version with 2 fets has an input swr of < 1:3 :( not something to be proud of....

    Can't find your callsign on
    Last edited: Jul 13, 2017
  8. BG6GLL

    BG6GLL QRZ Member

    Your standing-wave watch is not allowed.
    But FT817 can withstand a 3.0 of the standing wave.
    In addition, the matching resistance can be increased to reduce the standing wave ratio
  9. WA1GFZ

    WA1GFZ Ham Member QRZ Page

    I don't think a 1:3 output transformer will make 100 watts at 13 volts.
  10. KA9JLM

    KA9JLM Ham Member QRZ Page

    Says 16 Volt for 100 watts.

    I want one. :)
    KI4ZUQ likes this.
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